【Welcome Buzzer Monitor】The owners can use the doorbell to be alerted when people enter or leave. Use it to detect visitors through the front or back door. The portable design is easy to ...

LiDAR, or Light Detection and Ranging, works by measuring the time it takes for a laser pulse to travel to an object and back ...

laser sensors set off alarms at night and cameras linked live to mobile apps keep potential thieves at bay — 24/7. That’s what happens when the fast-flying fowl — which in a bygone era were ...